For a satisfying last-minute supper, it's hard to beat a sweet potato zapped in the microwave. The fragrant filling of beans and tomatoes adds protein. Be sure to eat the skin, which is full of fiber, as well.
Tortillas replace lasagna noodles in this beefy casserole with a south-of-the-border twist. With salsa, enchilada sauce, chilies, cheese and refried beans, it's a fiesta of flavors.
